Finding the Fourth Proportional to 2,007.42, 3,017.28 and 1,964.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,007.42 : 3,017.28 = 1,964.36 : x
2. Step 2: Convert to fraction form
   2,007.42/3,017.28 = 1,964.36/x
3. Step 3: Cross multiply
   2,007.42x = 3,017.28 × 1,964.36
4. Step 4: Simplify right side
   2,007.42x = 5,927,009.05
5. Step 5: Solve for x
   x = 5,927,009.05/2,007.42
6. Step 6: Final answer
   x = 2,952.55